This code provides an example of a transactional memory proposal as described in n1613.
You can find the transactional memory implementation in the examples/transactional.h file.
Another file, examples/alternatives.h, contains the same classes but implemented with std::mutex for synchronization. This allows for performance comparison between the transactional and mutex-based implementations.
Folder benchmarks contains google benchmarks for both transactional and alternative approaches.
To build that project you need gcc compiler and libitm installed on you machine. Other compilers haven't support for that proposal.